5.516 Найдите произведение: а) 10. 1 б) 1. 6; в) ; г) 3 8

Ответ: а) 1, б) 1, в) 1, г) 1

а) 10 \(\cdot\) \(\frac{1}{10}\) = \(\frac{10 \cdot 1}{10}\) = \(\frac{10}{10}\) = 1

б) \(\frac{1}{6}\) \(\cdot\) 6 = \(\frac{1 \cdot 6}{6}\) = \(\frac{6}{6}\) = 1

в) \(\frac{5}{9}\) \(\cdot\) \(\frac{9}{5}\) = \(\frac{5 \cdot 9}{9 \cdot 5}\) = \(\frac{45}{45}\) = 1

г) \(\frac{3}{8}\) \(\cdot\) \(\frac{8}{3}\) = \(\frac{3 \cdot 8}{8 \cdot 3}\) = \(\frac{24}{24}\) = 1

Ответ: а) 1, б) 1, в) 1, г) 1